Arthur F. Witulski obtained his BS, MS and Ph.D. in Electrical Engineering from the University of Colorado, Boulder. His graduate research was in the area of power electronics and dc/dc converters. he worked for Storage Technology, a large computer store manufacturer, as a power supply designer for two years. From 1989 to 2000 he was Assistant and Associate Professor at the University of Arizona in Tucson. He taught classes in analog electronics, power electronics, and design-oriented analysis at the undergraduate and graduate levels. His research interests included resonant dc/dc converters, magnetic components, high-voltage dc/dc conversion, and converter and converter system stability issues. He is currently a Senior Research Engineer at ISDE, where his interests include TCAD modeling of CMOS devices and modeling single-event phenomena.